Abdelmottaleb Moussa Sherif A, Aziz Samir W, Bashandy Samir A, Elbaset Marawan Abd, Abd El-Latif Noha A, Afifi Sherif M, Esatbeyoglu Tuba, El Toumy Sayed A, Salib Josline Y
Biophysics Laboratory, Biochemistry Department, National Research Centre, P.O. 12622, Cairo, Egypt.
Pharmacology Department, National Research Centre, P.O. 12622, Cairo, Egypt.
Heliyon. 2024 Nov 7;10(22):e40189. doi: 10.1016/j.heliyon.2024.e40189. eCollection 2024 Nov 30.
The relationship between obesity and the conformational structure of hemoglobin (Hb) has not been extensively investigated. This study aims to elucidate the dielectric parameters that distinguish the Hb molecule under obese conditions and following treatment with goldenberry (GB) extract, compared to a control group. The dielectric parameters analyzed include the loss factor (D), relaxation time (τ), dielectric increment (Δε), relative permittivity (έ), dielectric loss (ε"), conductivity (σ), and Cole-Cole parameters (α), measured across a frequency range of 20 Hz to 3 MHz. Significant differences in dielectric parameters were observed between obese rats and those treated with GB extract. Obese rats exhibited higher dielectric values compared to the control group, while rats treated with low and high doses of GB extract showed marked changes in Hb conformational structure. This study highlights the potential of dielectric parameters as biophysical markers for detecting hemoglobin conformational changes. Furthermore, it suggests that dielectric behavior could serve as an early indicator for assessing the severity of obesity and its related complications.
肥胖与血红蛋白(Hb)构象结构之间的关系尚未得到广泛研究。本研究旨在阐明与对照组相比,区分肥胖条件下及用灯笼果(GB)提取物处理后的Hb分子的介电参数。所分析的介电参数包括损耗因子(D)、弛豫时间(τ)、介电增量(Δε)、相对电容率(έ)、介电损耗(ε")、电导率(σ)和科尔-科尔参数(α),测量频率范围为20赫兹至3兆赫。在肥胖大鼠与用GB提取物处理的大鼠之间观察到介电参数存在显著差异。与对照组相比,肥胖大鼠表现出更高的介电值,而用低剂量和高剂量GB提取物处理的大鼠Hb构象结构出现明显变化。本研究突出了介电参数作为检测血红蛋白构象变化的生物物理标志物的潜力。此外,这表明介电行为可作为评估肥胖严重程度及其相关并发症的早期指标。